English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 64745/64745 (100%)
造訪人次 : 20516439      線上人數 : 355
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋

    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/6074

    題名: The orbital migrations of massive planets in the protoplanetary disks
    作者: 賴雲立;Yun-Li Lai
    貢獻者: 天文研究所
    關鍵詞: giant planet;migration;protoplanetary disk;steady disk;gap;photoevaporation;planet
    日期: 2005-07-06
    上傳時間: 2009-09-22 10:12:49 (UTC+8)
    出版者: 國立中央大學圖書館
    摘要: The observed small orbital radii of massive extrasolar planets around the central solar-type stars can be explained by the mechanisms of orbital migration. The scenario is: the planet forms in the protoplanetary disk and induces planet–disk tidal interactions resulting in the inward migration of the planet. In this thesis, we first construct a onedimensional disk model corresponding to the observational constraints and then investigate the effects caused by the embedded planet, including the regulations of the disk surface density and the planetary orbital radius. Using numerical simulations, the evolution of the disk as well as the changes in the planetary orbital radius are produced. The massive planet (∼ 1MJ ) opens a gap quickly in the vicinity of its location, and the gap would move with the migrating planet. If the planet forms earlier in the disk, its extent of migration is larger. We also find that the more massive planet migrates faster initially, but the resulting change in orbital radius is not obvious (it would stop migrating earlier).
    顯示於類別:[天文研究所] 博碩士論文


    檔案 大小格式瀏覽次數


    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋  - 隱私權政策聲明